Consider the following pairs of gases A and B.
Relative rates of effusion of gases A to B under similar condition is in the order :

a < b < c

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a < c < b

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a > b > c

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a > c > b

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Solution

The correct option is B $a < c < b$
Rate of effusion:
$\frac{r_{1}}{r_{2}} = \sqrt{\frac{M_{2}}{M_{1}}}$
So according to molar mass; order of effusion is $a < c < b$ .

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Consider the following pairs of gases A and B.Relative rates of effusion of gases A to B under similar condition is in the order :

The correct option is B a<c<bRate of effusion:r1r2=√M2M1So according to molar mass; order of effusion is a<c<b.

Consider the following pairs of gases A and B.
Relative rates of effusion of gases A to B under similar condition is in the order :

The correct option is B $a < c < b$
Rate of effusion:
$\frac{r_{1}}{r_{2}} = \sqrt{\frac{M_{2}}{M_{1}}}$
So according to molar mass; order of effusion is $a < c < b$ .